Findings from an ongoing clinical trial in the US suggest that botox injections could be used to treat depression. Derived from a bacterial neurotoxin called botulinum, botox is commonly injected to ease wrinkles, migraines, muscle spasms, excessive sweating and other conditions. Now, researchers at the University of California, San Diego, say those who receive botox injections are depressed far less often than others. They analysed a database which recorded adverse effects caused by medications to see what happened to nearly 40,000 people after they received Botox treatments for differing reasons. The study, published in the journal Scientific Reports, says that people who got botox injection--in six different locations--reported fewer instances of depression compared to patients undergoing different treatments for the same illness. In fact, depression was reported 40-88% less often by Botox-treated patients for six of the eight conditions and injection sites. The team, however, cautioned that this data was not specifically collected to study the link between Botox use and depression. Scientists say more research is needed, to identify the mechanism by which botox acts as an antidepressant.